Public bug reported:
Hello!
My environment:
Windows Server 2016 Standart
Hyper-V: Сontainer Gen 2: Security Check EFI - Off
Distribution OS: ubuntu-18.04.3-live-server-amd64.iso
Distribution OS: xubuntu-18.04.3-desktop-amd64.iso
My experiments have shown that these packages are the cause of the breakdown:
grub-efi-amd64-signed amd64 1.93.16+2.02-2ubuntu8.15
grub-efi-amd64 amd64 2.02-2ubuntu8.15
grub-efi-amd64-bin amd64 2.02-2ubuntu8.15
grub2-common amd64 2.02-2ubuntu8.15
grub-common amd64 2.02-2ubuntu8.15
With package version 2.02-2ubuntu8.14, everything is fine.
grub-efi-amd64-signed (1.93.15+2.02-2ubuntu8.14)
What the breakdown leads to:
After the reboot, a black bootloader screen appears.
GNU GRUB version 2.02
*Ubuntu
Advanced options for Ubuntu
System setup
Selecting any option returns back to the option selection.
Starting the kernel manually also returns to the selection of options.
A clean installation of the OS Ubuntu Server 18.04.3 amd64 during installation
installs updates and leads to the same result.
A clean installation of the OS Xubuntu 18.04.3 works without an Internet
connection, but after starting updates on the system itself, the result is the
same.
Common bootloader recovery methods do not help.
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1871771
Title:
grub2 broken after update
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